Serial data input circuit for the shifting-in of variable length

Details Serial data input circuit for the shifting-in of variable length Serial data input circuit for the shifting-in of variable length

1992-02-06

1993-03-16

Popek, Joseph A.

Static information storage and retrieval

Plural shift register memory devices

36518905, 365221, G11C 700, G06F 504

Patent

active

051950553

ABSTRACT:
A serial data input circuit of this invention which, at the time of inputting of serial data, stores a predetermined signal represented in the bit outputted from the output side of the shift register when the last bit of serial data is inputted into the input side of a shift register and signals other than the predetermined signal in other bits respectively, so that, when all the bits of serial data are inputted into the shift register, the predetermined signal is outputted from the shift register, thereby realizing the circuit of small-sized, of simple in circuitry construction without a counter or the like.

REFERENCES:
patent: 4283620 (1981-08-01), Drescher et al.
patent: 4953128 (1990-08-01), Kawai et al.
Research Disclosure, Jul. 1985 No. 255, Variable Length Feedback Shift Register.
"A High-Performance Digital Signal Processor VLSI: MN1900 Series," Ueda et al, presented at Tokyo ICASSP 1986.

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